Adjustable die-stock.



I. W. NONNEMAN. ADJUSTABLE DIE STOCK. APPLIOATIOH FILED mu 6. 190a.

Patented Mar. 9, 1909.

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Wit" mom I. W. NONNEMAN. ADJUSTABLE DIE STOCK.

APPLICATION FILED MAY 6. IQOG. 91 4,503 Patented Mar. 9, 1909.

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IRA W. NONNEMAN, OF WARREN, OHIO, ASSIGNOR TO THE BORDEN COMPANY, OFWARREN, OHIO, A CORPORATlON OF OHIO.

ADJUSTABLE DIE-STOCK.

Specification 01 Letters Patent.

Patented March 9, 1909.

Application filed May 6, 1908. Serial No. 31,251.

To all whom it may concern:

Be it known that I, Ina \V. Nonivui-r/uv, of Warren, in the county ofTrumbull and State of Ohio, have invented certain new and usefulImprovements in Adjustable Die-Stocks; and I do hereby declare thefollowin to be a. full, clear, and exact descri tion of the invention.such as will cna do others skilled in the art to which it appertains toriake'und use the same.

The primary object of this invention is to provide in a (lie stockhaving a single rotatable late for adjusting and holding two sets 0chasers. means whereby only a single set of chaser-s will be acted uponat a time, and both sets of chasers may be successively brought intoworking'position and succes- 'sively retired by the continuous turningof the plate in one direction.

A further object is to provide improved means for binding and holdingthe chaser adjusting plate;

' The invention will be hereinafter fully set forth and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view, with parts indotted lines. Fig. 2 is a similar vien showing the adjusting plate in adifferent position, and with parts broken away. Fig. 3 is a sectionalview on line 3-43, Fig. 4, with parts omitted. Fig. 4 is an enlargedsectional view on line #4, Fig. 1. Fig. 5 is a detail.

Referring to the drawings, 1 designates the die housing formed withradial guideways to accommodate chascrs each of which carries anoutwardly projecting lug 3. l have shown two sets of chasers, four to aset, each of which is capable of threading two sizes of pipe, or four inall. Ilence the UGCBSSBJEIy change in the itch of the tln'cad, require bpipes of ditl erent sizes, is provided for y the threads of the chasers.

4 designates .a rotatable plate by which the sets of chasers aresuccessively acted upon by the rotation of such plate in one direction.This face of the housing and turns on a tubular extension 5 thereofwhercon it as against displacement by a nut (3 working in athread ofsaid extension. As shown in Fig. 3 this plate has on its inner face fourseparate slots, each of which comprises an outer eccentric portion 7 aninner eccentric central portion 8, and an intermediate concentric latefits against the outer is held portion 9 connecting the two eccentricportions. The latter form the actuating agencies for the respective setsof chascrs, and hence are struck from centers ditierent distances fromthe axis of the plate. When the lugs of the chasers of either set are inengagement with their respective eccentrics, the lugs of the chaser-s ofthe other set are in the concentric portion 9, thereby enabling theplate to adjust one set of chasers without moving the other set.

In hand tools one set of chasers is capable of cutting one-fourth andthree-eighth inch pipes, and the other setof cutting one-half andthree-fourth inch pipe. By rotating the adjusting plate in onedirection, the chasers may be set for cutting four ditierent sizes ofpipe, but when either set of Chasers is in use the other set is held outof the way and will not be moved by the turning of the plate until thefirst set is brought into position where it is unacted upon by theturning of the plate in the ad ustment of the second set of chascrs.

The adjusting plate is locked by a. thumb nut 10 on screw rod 12 forcinga cone like or tapered sleeve 13 into the openings of two plates Hand15, so that the former, whose opening is eccentric to said rod, will bemoved outwardly against the inner face of the adjusting plate and bindthe latter against the inwardly turned hooked end 16 of plate 15. p Theinner plate 14 is located in a, correspondingly formed recess in thehousing, but its opening, which is approximately elliptical, is not intrue alinement with the correspondinglylshaped opening of the outerplate 15. ence the ta cred sleeve when the thumb nut is screwed ome willforce the inner plate outwardly u sufficient distance to make plate 4bind" firmly against the hooked end of plate 15. The screw rod 12projects laterally from the housin and hence is not in the way when thetoo is in use.

I claim as my invention 1 .1. In combination with a casing, and two setsof radially movable chasers, a. 1'0- tatable adjusting plate having twoseries of eccentric engaging portions, one for each set of chasers, anmeans carried b said plate for holding either set of chasers inactiveand unaflect/ed by the while the other set is in active relation to itsrespective series of engaging portions.

movements of said plate 2. In combination with a casing, and two sets ofradially-movable chasers, an adjusting plate rotatable on said casingand having two series of eccentric engaging ortions forsaid sets ofchasers, and also laving intermediate concentric engaging portions, eachseries of eccentric engaging portions being struck from centersdifferent distunces from the axis of said plate, one set of chasersbeing held by said concentric portions when the other set is engaged byits respective eccentric portions,

3. in a die stook, a housing, a series oi chasers, an adjusting platefor the latter, and means for locking said adjusting plate, said meanscomprising two clamping members located at right angles to such plate,one for engaging the inner face of the latter and the other for en agingthe outer face thereof, and adjustab e means mounted on the housing forcausing the inner member to hind the adjusting plate against the outermember.

4. In a die stock, a housing, a series of chasers, an adjusting platefor the latter, and means for locking said adjusting plate, such meanscomprising two clamping lates having each an enlarged opening, a rodproings, a wedging sleeve on sai gaging one of said ward] y against thelnner face of san ad ustjecting from the housing through said openlatesfor forcin it outing plate, the other of said lates havin an outerhooked end a ainst w ich the ad usting plate is designed to be forced.

5. The combination with a housing chasers therein. and achaser-adjusting late, of a screw rod projecting from said ousing, aclamping plate fitted in a recess in said housing and having an openingeccentric to 'said screw rod, a second clamping member also having anopening for sand screw rod and hooked at its outer end, a tapered sleevefitted on said screw rod for forcing said inner clamping plateagainstsaid adjusting plate and the latter against said hooked end, and a thumbnut for engaging said Sleeve.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

IRA W. NONNEMAN.

Witnesses E. G. Mona-Ar, M. B. Baorrrnn.

rod for en-

